New technique analyzes the shadows Spot Fakes photo

Points counterfeit detection algorithm shadows that do not match light sources. (ISNS) – A new algorithm able to detect the fake photos, looking at the inconsistent shadows that are not always evident at first sight. The technique, which will be published in the journal ACM Transactions on Graphics in September, is the latest tool in the arms race between the increasingly sophisticated forensic experts and those who manipulate digital photos to create false or misleading purposes tableaux. The national security agencies, the media, scientific journals and other digital forensic techniques used to distinguish between real and counterfeit computer images. James O’Brien, a computer …